AGE detp:rmixation from scales of lake trout 



25 



Table 6. — Progress of anniilus formalion on the marked take trout 



[Based on rocovcrii's for the calendar years 1947-51 and age groups II-VI. No consistent differences could be detected among age groups In collections from 



dilTerent years] 



I Sec page 19 for comments on these specimens. 



100 



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6 23 8 22 8 23 8 23 8 23 8 22 8 23 8 23 8 23 

 JAN FEB MAR APR MAY JUNE JULY AUG SEPT 



Figure 17. — Perci'iitanc of marked lake trout 

 curve drawn by inspection. 



(lowing new growth on their scales. Empirical data indicated by dots 



